Abstract: An abrasive agglomerate particle includes fused aluminum oxide mineral bonded in a vitreous matrix. The fused aluminum oxide mineral is present in a range from 70 percent by weight to 95 percent by weight and the vitreous matrix is present at least at five percent by weight, based on the weight of the abrasive agglomerate particle. The fused aluminum oxide mineral has an average particle size of up to 300 micrometers, and the abrasive agglomerate particle has a frusto-pyramidal shape with side walls having a taper angle in a range from 2 to 15 degrees and a dimension of at least 400 micrometers. The abrasive agglomerate particles are useful in abrasive articles. The method includes contacting the workpiece with an abrasive article and moving the workpiece and the abrasive article relative to each other to abrade the workpiece.

Abstract: A shaped abrasive agglomerate particle includes a shaped abrasive particle bonded in a vitreous matrix. The shaped abrasive particles have a longest particle lineal dimension on a surface and a shortest particle dimension perpendicular to the longest particle lineal dimension, and the longest particle lineal dimension is at least twice the shortest particle dimension. The shaped abrasive agglomerate particle has a longest agglomerate lineal dimension on a surface and a shortest agglomerate dimension perpendicular to the longest agglomerate lineal dimension, and the longest agglomerate lineal dimension is at least twice the shortest agglomerate dimension. The abrasive agglomerate particles are useful in abrasive articles. Methods of making the shaped abrasive agglomerate particle and abrading a workpiece are also described.

Abstract: A structured abrasive article comprises a plurality of shaped abrasive composites disposed on and secured to a major surface of a backing. The shaped abrasive composites comprise magnetizable abrasive particles retained in an organic binder. On a respective basis, each of the magnetizable abrasive particles has a ceramic body with a magnetizable layer disposed on at least a portion thereof. Methods of making and using the structured abrasive articles are also disclosed.

Abstract: A shaped abrasive agglomerate particle includes a shaped abrasive particle bonded in a vitreous matrix. The shaped abrasive particles have a longest particle lineal dimension on a surface and a shortest particle dimension perpendicular to the longest particle lineal dimension, and the longest particle lineal dimension is at least twice the shortest particle dimension. The shaped abrasive agglomerate particle has a longest agglomerate lineal dimension on a surface and a shortest agglomerate dimension perpendicular to the longest agglomerate lineal dimension, and the longest agglomerate lineal dimension is at least twice the shortest agglomerate dimension. The abrasive agglomerate particles are useful in abrasive articles. Methods of making the shaped abrasive agglomerate particle and abrading a workpiece are also described.

Abstract: An abrasive agglomerate particle includes fused aluminum oxide mineral bonded in a vitreous matrix. The fused aluminum oxide mineral is present in a range from 70 percent by weight to 95 percent by weight and the vitreous matrix is present at least at five percent by weight, based on the weight of the abrasive agglomerate particle. The fused aluminum oxide mineral has an average particle size of up to 300 micrometers, and the abrasive agglomerate particle has a frusto-pyramidal shape with side walls having a taper angle in a range from 2 to 15 degrees and a dimension of at least 400 micrometers. The abrasive agglomerate particles are useful in abrasive articles. The method includes contacting the workpiece with an abrasive article and moving the workpiece and the abrasive article relative to each other to abrade the workpiece.

Abstract: A structured abrasive article comprises a plurality of shaped abrasive composites disposed on and secured to a major surface of a backing. The shaped abrasive composites comprise magnetizable abrasive particles retained in an organic binder. On a respective basis, each of the magnetizable abrasive particles has a ceramic body with a magnetizable layer disposed on at least a portion thereof. Methods of making and using the structured abrasive articles are also disclosed.

Abstract: A structured abrasive article is contacted by a laser beam to create microporous surface regions over a portion of the abrading surface to make a coated abrasive article that includes a backing and an abrasive layer comprising abrasive composites secured to the backing.

Abstract: A method of abrading a zirconium-based alloy workpiece including the steps of contacting a zirconium-based alloy workpiece with an abrasive article, wherein the abrasive article includes a flexible waterproof backing having a first surface bearing a cured primer coating; and a plurality of shaped structures, each structure having a distal end spaced from said backing and an attachment end attached to the primer coating on the backing, said shaped structures comprising a mixture of abrasive particles having a Knoop hardness greater than 2,200 kg/mm2 and cured particulate binder, wherein the metal workpiece is contacted with the distal ends of the shaped structures to form an abrading interface; moving the abrasive article relative to the metal workpiece while providing sufficient force between the metal workpiece and the distal ends of the shaped structures of the abrasive article to abrade the metal workpiece; and applying liquid coolant proximate the abrading interface.

Abstract: A method of abrading a metal workpiece including contacting a metal workpiece with an abrasive article, wherein the abrasive article includes a flexible waterproof backing having a first surface bearing a cured primer coating; and a plurality of shaped structures, each structure having a distal end spaced from said backing and an attachment end attached to the primer coating on the backing, said shaped structures including a mixture of abrasive particles and cured particulate binder, wherein the metal workpiece is contacted with the distal ends of the shaped structures to form an abrading interface; moving the abrasive article relative to the metal workpiece while providing sufficient force between the metal workpiece and the distal ends of the shaped structures of the abrasive article to abrade the metal workpiece; and applying liquid coolant proximate the abrading interface.

Abstract: An abrasive article is provided which comprises a backing and at least one three-dimensional abrasive coating bonded to a surface of the backing. The abrasive coating comprises a binder formed from a cured binder precursor having dispersed therein a plurality of diamond bead abrasive particles and a filler which comprises from about 40 to about 60 percent weight of the abrasive coating. The abrasive article is particularly suitable for abrading a glass or a glass ceramic workpiece in the presence of a lubricant.

Abstract: An abrasive article is provided which comprises a backing and at least one three-dimensional abrasive coating bonded to a surface of the backing. The abrasive coating comprises a binder formed from a cured binder precursor having dispersed therein a plurality of diamond bead abrasive particles and a filler which comprises from about 40 to about 60 percent weight of the abrasive coating. The abrasive article is particularly suitable for abrading a glass or a glass ceramic workpiece in the presence of a lubricant.

Abstract: An abrasive article is provided which comprises a backing and at least one three-dimensional abrasive coating bonded to a surface of the backing. The abrasive coating comprises a binder formed from a cured binder precursor having dispersed therein a plurality of diamond bead abrasive particles and a filler which comprises from about 40 to about 60 percent weight of the abrasive coating. The abrasive article is particularly suitable for abrading a glass or a glass ceramic workpiece in the presence of a lubricant.

Abstract: An abrasive article is provided which comprises a backing and at least one three-dimensional abrasive coating bonded to a surface of the backing. The abrasive coating comprises a binder formed from a cured binder precursor having dispersed therein a plurality of diamond bead abrasive particles and a filler which comprises from about 40 to about 60 percent weight of the abrasive coating. The abrasive article is particularly suitable for abrading a glass or a glass ceramic workpiece in the presence of a lubricant.

Abstract: A coated abrasive article comprising a backing bearing on one major surface thereof a layer of abrasive grains overcoated with a loading resistant coating and on the other major surface thereof a layer of pressure-sensitive adhesive. The loading resistant coating comprises a lithium salt of a fatty acid. It may also contain additives selected from the group consisting of surfactants, wetting agents, binders, anti-foaming agents, fillers, plasticizers, and mixtures thereof. The use of a lithium salt of a fatty acid significantly reduces the amount of transfer between the loading resistant coating of a first coated abrasive article and the pressure-sensitive adhesive layer of a second coated abrasive article disposed within a package.